Upper-trimming means



July 20, 1943. JORGENSEN 2,324,512

UPPER TRIMMING MEANS Original Filed Feb. 4, 1941 s Shets-Sheet -1 July 20, 1943.

B. JORGENSEN UPPER TRIMMING MEANS Original Filed Feb. 4, 1941 5 Sheets-Sheet 2 July 20, 1943. B. JORGEN SEN 2,324,512

UPPER TRIMMING MEANS Original Filed Feb. 4, 1941 5 Sheets- Sheet 3 F1 .9; r g R 40. 1% Z76 "3Z6 3% 2, 60 ,qa

XV 15 194 j/QO I s E: 2241 I %w 105 830 [56 JulyZQ, 1943. B ogmENsEN 2,324,512

UPPER TRIMMING MEANS Original Filed Feb. 4, 1941 5 Sheets-Sheet 4 July 20, 1943. a. JORGENSEN 2,324,512

UPPER TRIM'MING MEANS a ori inal. Filed Feb. 4, 1941 5 Sheets-Sheet 5 Patented July 20, 1943 UPPER-TRIMIHING S Bernhardt Jorgensen, Marblehead. Mass., as-

signor to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Original application February 4, 1941, Serial No.

1942, Serial No. 443,097

40 Claims. (Cl. 12-835) This invention relates to upper-trimming means, this application being a division of a copending application of mine for Letters Patent for improvements in Machines for use in the manufacture of shoes, Serial No. 377,347, filed on February 4, 1941. A particular object of the invention is to provide means for trimming from the toe end of a multi-ply upper on a last the margin of one or more inner layers of the upper materials while leaving a margin of the outer layer to be lasted inwardly over an insole on the last, and the invention is herein illustrated as embodied in mechanism constructed for that purpose as part of the machine shown and described in the above-mentioned application, which is a machine for lasting'the toe ends of shoes. It is to be understood, however, that the invention is not limited to that particular embodiment or to upper-trimming means which is part of a lasting machine.

In one aspect, the invention provides novel upper-trimming means comprising a plurality of trimming knives movable outwardly from positions opposite the bottom of the last to perform the trimming operation, the construction shown comprising a pair of side knives movable apart widthwise of the last to trim the upper at-the sides of the toe and a middle knife movable lengthwis of the last to trim it at the end of the toe. To enable these knives thus to operate in proper relation to one another, the construction shown is further such that the side knives act first on the upper, thus providing sufiicient space between them for the middle; knife, whereupon the latter is moved heightwise of the last to the same plane as the side knives and then completes the upper-trimming operation by movement lengthwise of the last.

In accordance with another feature, the invention provides a novel construction whereby the upper-trimming means is first positioned relatively to the work by fluid pressure and is thereafter operated byfluid pressure to perform the upper-trimming operation. Inits embodiment of this feature the construction shown comprises a fluid operated device for moving the uppertrimming means relatively to the last into position for operating on the upper, and another fluid-operated device which partakes of that psitioning movement of the upper-trimming means and thereafter imparts operative movement to the trimming means.

In order to relieve the operator of any concern with reference to disposal of the waste material removed from the upper, the invention further Divided and this application May 15,

provides novel means for controlling that material. As herein illustrated, the above-mentioned middle trimming knife has associated with it a waste-retaining member which cooperates with the knife to hold the waste material as the uppertrimming means is moved away from the workafter the upper-trimming operation, and this member is operated automatically to release the material over a receptacle provided to receive it, To afford still better insurance that thewaste material will be properly disposed of, the construction shown further includes a device which is movable relatively to the middle knife to remove the waste material therefrom if it does not fall upon its release by the above-mentioned waste-retaining member.

Theabove and other featuresof the invention, including novel holddown means for controlling the margin of the insole in the upper-trimming operation and various novel details of construction and combinations of parts, will now be more particularly described with reference to the accompanying drawings and thereafter pointed out in the claims.

In the drawings,

Fig. 1 is mainly a plan view of a portion of the machine shown in the above-mentioned appli-, cation, comprising upper-trimming means in which novel features of the present invention are embodied and cement-applying means associated therewith;

Fig. 2 is a section on the line II-II of Fig. 1;

Fig. 3 is substantially a plan view, with parts broken away, showing in greater detail mechanism which appears at the left-hand side of Fig. 1 for removing waste material from the trimming means;

Fig. 4 is a view in elevation illustrating the action of the waste-removing mechanism shown in Fig. 3;

Fig. 5 is a section on the line V-V of Fig. 1;

Fig. 6 is a section on the line VI-VI of Fig. 5;

Fig. 7 is a vertical section through one of the side-trimming knives and its support;

Fig. 8 is a section on the line VIII -VI II of Fig. 1, on an enlarged scale;

Fig. 9 is a section on the line IX--IX of Fig. '1;

Fig. .10 is a section on the line X-X of Fig. 9;

Fig.'11 is a view partly in elevation and partly in section illustratingthe relation to the shoe of parts that operate thereon at a time in the cycle immediately prior to the upper-trimming operation;

Fig. 12 is mainly a plan view showing the parts in the positions which they occupy at the same time in the cycle as in Fig. 11;

Fig. 13 is mainly a vertical sectional view showing certain parts as they appear at the beginning of the trimming operation;

Figs. 14, 15 and 16 are sectional views illustrating progressively the position of the parts at other times thereafter in the operation of the machine; and

Fig. 17 is a view partly in plan and partly in section showing certain parts at the same stage in the cycle as in Fig. 16.

The machine shown in the above-mentioned application, in which the present invention .is herein illustrated as embodied, is a power-oper-' ated lasting machine having means for lasting the toe end of a shoe positioned'bottom upward. The shoe is thus positioned in proper relation to the lasting means by a member 2 (Fig. 11) which engages the bottom of the toe end of the insole and by a plurality of pins 4 which extend through holes in the insole into holes provided in the last. The operator mounts the shoe and last on the pins 4 with the insole in engagement with the member 2 prior to the starting of the cycle of power operations of the machine. After the starting of the machine a toe rest 6 and an instep support 8 are moved upwardly to clamp the shoe against the member 2 and to support it thereafter against downward movement during the operation of the machine. To assist also in supporting the shoe against lengthwise movement, a'heel rest l is moved into engagement with the heel-end face of the shoe. The shoe having thus been positioned and supported, a plurality of grippers, comprising a 'to-e-end gripper l2 and side grippers I4 (Fig. 12), which grip the margin of the several layers of the toe-end portion of the upper, are moved in outward directions lengthwise and widthwise of the shoe respectively to pull the upper and thus to assist in shaping it properly over the toe end of the last. Arranged to cooperate with these grippers in the lasting operation are a flexible toe former i6, which embraces the toe end of the shoe, and a pair of toe-embracing wipers i8. The toe former and the wipers are moved as a unit heightwise of the shoe to cause the toe former to wipe the upper upwardly to the edge of the insole while it is held under tension by the grippers, as illustrated in Fig. 11. Surplus marginal material is next trimmed from all but the outer layer of the toe-end portion of the upper by trimming means, hereinafter described, in which features of the present invention are embodied, the grippers releasing the upper to make way for the trimming means. Cement is then applied to the toe end of the shoe for securing the margin of the outer layer of the upper to the insole, and the wipers [8 are operated to wipe the margin of the outer layer inwardly over the insole. It will be understood that the nature of the operations thus briefly outlined and the construction of the machine as a whole are fully disclosed in the previously mentioned application.

For purposes of this invention there is provided an upper-trimming device indicated generally by the reference character 20 (Fig. 1), associated with which is a cement-applying device indicated generally by the reference character 22. Both these devices are supported on a carrier 24 clamped on a vertical hollow post 26. This post is guided for vertical movements and for turning movements in a cylinder 28 (Fig. inserted in a tubular portion 30 of the frame of the machine and in another bearing (not herein shown) below the cylinder 28. By the vertical movements of the post the trimming device and thereafter the cement-applying device are moved downwardly each into position to operate on the shoe, and by the turning of the post the carrier 24 is swung to .carry the different devices into'positions where they are over the toe end of the shoe. Initially the carrier occupies the position in which it is shown, with the trimming device over the shoe, this position of the carrier being determined by engagement of a bumper 32 (Fig. l) with a portion 34 of the frame of the machine. The other position of the carrier, when the cement-applying device is over the shoe, is determined by engagement of a bumper 36 on the carrier with another portion (not shown) of the frame. Swinging movement of the carrier into the lastmentioned position is effected by a piston 38 movable in a cylinder 40 fast on the frame, the piston being connected by a link 42 to a pin 44 mounted on an arm 46 which is connected to the post 26 for turning it but relatively to which the post may move in vertical directions. In communication with the cylinder 40 is a pipe line 48 leading to a source of supply of operating fluid and to valve mechanism whereby the admission of fluid to the cylinder and the exhaust of fluid therefrom are controlled automatically in the cycle of operations of the machine, as fully disclosed in the previously mentioned application. The link 42 extends beyond the pin 44, and connected to the extended portion of the link and to the cylinder) is a spring 50 which swings the carrier 24 to its initial position determined by engagement of the bumper 32 with the frame portion 34 when the fluid is permitted to exhaust from the cylinder.

The upper end of the hollow post 26 is closed by a plug 52 (Fi 5) and a disk 54 fastened to this plug serves as a holder for packing 56. The upper end portion of the post serves, therefore, as a piston in the cylinder 28, and by fluid admitted to the upper end of the cylinder through a pipe line 58 downward movement is imparted to the post to carry the trimming device and the cement-applying device each into position to operate on the shoe. It will be understood that the pipe line 58 leads to the source of fluid supply and that the admission and exhaust of fluid to and from the cylinder 28 are controlled by appropriate automatic valve mechanism. The downward movement of the post is effected againstthe resistance of a spring 60 therein which'bears'at its upper end against the plug 52 and acts to return the post to its uppermost position when fluid is permitted to exhaust from the cylinder 28, the upward movement of the post being limited by engagement of a fibre bumper 62 supported on the hub of the carrier 24 withthe lower end of the tubular portion 30 of the frame. The limit of the downward movement of the post, to position the trimming device and the cement-applying device in proper relation to the shoe heightwise thereof, is determined by means not herein shown but disclosed in the previously mentioned application.

The upper-trimming device 20 comprises a middle knife 64 (Figsp5 and 12) 'which is curved in general similarity to the curvature of the edge of the insole around the end of the toe and is movable lengthwise of the shoe toward the toe-end gripper l2, and two side knives movable-laterally of'the shoe toward the side 2324,5112: grippers I4 in paths curved. abouta verticala'rds;

located opposite the; end of the-toe. The cut.-

tingedges, of the several knives, in. operating, on the upper, move in a plane parallel to the top faces of the wipers. and spaced from these:

faces a distance substantially, equal tothethickness of the outer layer of the upper materials,

so that as the marginal portions of the different layers are outturned over the wipers the knives sever the surplus marginal material of the inner layer or layers by cutting the material on a line parallelto the edge of the last bottom while leaving a margin of the outer layer to be lasted inwardly over the insole. illustrated, the

top faces of the wipers I8 (Fig. 11) are positioned at the time of the upper-trimming operation somewhat above the plane of the bottom face of the toe end of the insole, to leave enough of the. inner layer or layers to overlap thelextreme marginal edge of the insole when the wip ers thereafter wipethe outer layer inwardlyn It will be understood that thetoe end of the upper.

materials usually comprises at least three layers, including a lining and a toe box in'gaddition to the outer layer, but forconvenience of illustration the drawings'show only the lining in addition to the outer layer. As; shown in Fig. 12, the shoe ispreferablyprePared for the operation of the machine by slittingthe margin of the upper materials at thesides of the toe forwardly of the side pulling-overtacks, to facilitate turning of the margin 'of the toe-endportion of the materials outwardly in parallelrelaside edges: of this slide are cam-faces 96 engaged by rolls. 98 mounted on the levers 82;

Accordingly, upon rearward movement, of the.

slide 90, i. e.,. movement towardthe left in Fig. 6, the cam faces 96 act on therolls 98 to. swing the levers 82 outwardly about the studs 84 and mentoi the piston lilfi serves to move the-slide thus to impart operative movements to the side knives 66. After these knives have thus been, operatedthe rolls are engaged by parallel side edges I08 of the slide 90 to permit further movement of the slide while the side knives remain stationary. These knives are returned to their initial positions, upon reverse forward movement of the slide 90,.by engagement of a crossbar I02 fast on the slide with the rolls 88.

Operative rearward movement is imparted to the slide 90 by a fluid-operated piston I04 mounted in a cylinder I86 which is integral with the carrier 24, the piston being connected by a link I08 to one arm III) of a three-armed leverII 2 mountedto swing about a pin II4 supported upwardly extending webs of the carrier 24. iln seccndarm H6 of the three arrned lever is con; nected by a link H8 to a pin I mounted in.

lugs on the slide 90. Accordingly upward move- 90.11. 1. e r wa d. rec i n, t is m nt e tion to the plane of the wipers, and the knives act to sever completely the surplus margin of the inner layer or layers from the rest oflthe upper materialsl The operation of the trimming ineanslfis such that the side knives Biact on the upper prior to the middle knife 64, the grip-. pers maintaining their hold on the upper until these side, knives have startedtheir trimming operation,asillustrated in Fig. 13, whereupon theIseveralgrippers openand are moved farther. outwardly to provide clearance for the knives; After the sidkniires have completed their operativemovements the middle knife 64 acts, as;

illustrated in Figs 14 ,and 15, to complete the;

severing of the surplus m aterial. d s v Each side knife 66 issecured to a knife holder I 58 (Figs. 1, 5 and 7) theupper portion of which. is curved ina horizontal plane (Fig. 1 and-is provided with flangesginovablwalong curved guideways I0 in the carrier 24, these guideways;

beinglcur'ved, as abovesuggested about a.ver-

tical "axis "located opposite the endofthe toe of the shoe. The flanges arelsupported under. neath by gibs I2 (Fig. 5). Each knife 66-15 .ade justable heightwise of ,the shoe relatively to its holder 68, and is held in adjusted position by a clampingJscrew I4 threaded in theknife and.

extending through a slot'lli in the holder. fine adjustment of the knife is facilitated by the provision of a screw 18 which is threaded in 9. lug on theholder 68 and arranged to: bear limited; by engagement of alug I22 on the arm l I fiwvith a face I24-on thecylinder I06. Re

turn movement of the slide is eflectedb v springs I26 connected to a pin I21 on the carrier 2,4 ancl .to short. arms I28, one of which is shown in Fig.v .5. integral with the threearmed lever I12. Such return movement of the slide is 11m:-

ited by ngagement of the crossbar I02 thereon withithe rolls 98, the latter engaging. the cam,

yf s 9 .41:: the Sl d Fluid s dmi q e cylinder I06 from a pipe line J33 (Fig. 1 )a portion of; which is flexible to'perrnit the swinging movements of the carrier 24. Admission and exhaust of aun andfrom the cylinder are controlled by an appropriate automatically op;

eratedvalve (not herein shown), as disclosed in the previously mentioned application.

. fljhe middle knife Q 4 is supported I frontiend. of a curved arm. I 32 which extends rearwardly and is pivotally mouhted at its rear nd. or. s n in mov en heishtwisei i h shoe on the pin IZILHfIhe knife is adjustable relatively to this armand is secured in adjusted position byja clamp screw I34 threaded in the knife and extending through a 5101; I36] in the Twoset screws I38 (Figs .1 and a l2) threaded in the arm and engaging the upper surface of. theiknife are provided to assistin obtaining afine adjustmentof the knife about an axis extending lengthwise of the shoe. 1 The front end of the arm I32.is held initially-upraised bya spring I40 connected tothe arm above thepivot pin I20 andto a pin. I42 on th e slide 98. The initial position of the armis determined by engagement of a lug I44 on its rear endwith the top face of the slide 98, as illus trated in Figs. 5 and 6. It will be evident that theflarm I32is carried rearwardly by the slide gl'llfbut. it remains upraised until the side knives 66 have been swung substantial distances away from each other. Thearm is then swung downwardly to carry the knife 64 to the same plane as theside knives, and by further movementlof theslide 90 thereafter the knife 64 is moved rectilinearly to complete the upper-trimming operation. For thus swinging the arm ,downwardly there is provided a lever I46 pivotally mt P111 1 heupstanding web pore.

tions of the carrier 24 and provided with a roll I50 arranged to-engage a plate I52 fast on the arm. A third arm I54 of the three-armed lever II2 carries a roll I56 which by engagement with a rearwardly extending arm I58 of the lever I46 holds this lever initially with the roll I50 retracted rearwardly beyond the plate I52. As the three-armed lever II2 receives its operative movement the roll I56 is carried downwardly along the rear face of the-lever I46 and by engagement with a cam face swings it in a forward direction as the arm I32 is being carried rearwardly. This causes the roll I50 to act on an inclined edge I62 of the plate I52 to impart a quick downward movement to the arm I32, after which the roll engages the top face of the plate to maintain the knife 64 at the proper height during its action on the upper materials. At this time the lever I46 is held stationary by engagement of 'the roll I56 with a face I64 of the lever which is curved on an arc concentric with the axis of the pin II4. As the arm I32 is swung downwardly a lug I66 extending upwardly from the slide 90 enters a recess I68 in the arm to insure by engagement with the side walls of this recess that the arm is held properly positioned laterally. To insure against damage in case the arm I32 should be swungaccidentally downward when the machine is idle, a lug I70 (Fig. 1) on the arm is arranged to engage a lug I'I2 formed on one of the gibs 94.

It is desirable during the upper-trimming operation to hold the margin of the toe end of the insole down on the last out of the way of the trimming knives. The machine is accordingly provided with a holddown I'I4 comprising a rod curved similarly to the edge of the toe end of the insole and having upwardly extending portions I76 mounted in brackets II8 fast on the carrier 24. The curved portion of the rod thus engages the insole between the latter and the paths of movement of the trimming knives. The upwardly extending portions I'I6 of the rod are adjustable vertically in upwardly extending tubularportions of the brackets I18, these tubular portions being split and encircled by split clamps I80 (Fig. l) which are contracted by suitable screws to retain the holddown in adjusted position. It will be understood that the holddown is moved into engagement with the insole by the downward movement of the carrier 24.

The waste material severed from the toe end of the upper by the trimming knives is held on thearm I32 adjacent to the middle knife 64 by a retainer comprising a resilient curved plate I82 fastened to the arm by a screw I84, the lower end of this plate being bent toward the edge of the knife 64 but being spaced far enough therefrom to permit the waste material, when this knife is operated, to be forced upwardly between the knife and the lower edge of the plate, as illustrated in Figs. 14 and 15. Accordingly, the waste material is supported by the arm I32 when the arm is swung upwardly and moved forwardly after the upper-trimming operation and during the subsequent movements of the carrier 24 to carry the trimming means away from over the shoe and to bring the cement-applying means 22 into position to operate on the shoe. The machine is further provided with means for removing the waste material from the arm I32 when the cement-applying means is in engagement with the shoe. Fast on the left-hand side of the frame of the machine is a casting I88 (Fig. 1) formed to serve as a receptacle for the waste I60 on this lever' materialand securedi to this casting within. the receptacle by screws I88 (Figs. 1 and 9') is a.

bracket I90. The screws extend through slots in a recess 200. which receives. the lower end of the trimming knife 64, as illustrated in Fig. 4, when the plate'is swung by rotation of the shaft I94 after the carrier 24 has moved the knife downwardly in carrying the cement-applying means into engagement with the shoe. In such swinging movement of the plate I98 an upwardly extending end portion 202 thereof is arranged toengage the waste material, indicated at 204" in Figs. 1 and 4, and to remove it from the trimming knife so that it falls into the receptacle provided by the casting I86.

To provide clearance for the end portion 202* of the plate I98, mechanism is provided for swing ing the resilient waste-retaining plate I82 away from the knife 64 to'the position illustrated in Fig, A. This mechanism comprises a pin 206 (Figs. 5 and 11) slidingly mounted'in the arm I32 with its rear end in. engagement with the plate I82, a member 208 pivotally mounted'on the arm and provided with a screw 2 I 0. arranged to' engage 'the .'front end of the pin 206 and a rod 2I2' pivotally connected to the member 208 and extending downwardly through an opening in a lug 2I3 on the arm I32 in position for its lower end to engage a plate 2 (Figs. 1 and 9) secured to the bracket I90 when the trimming means is carried downwardly toward the waste removing means in the manner above described. It will be understood that in response to engage? ment of the plate 2 I4 with the rod 2I2 the mem-' ber 208 is swung to force the pin 206 rearwardly and thusto move thelower end portion of the waste-retaining plate -I82 into the position. illus,-;

, interference between the lower" end of thelrod and other parts of themachine. It will be noted by reference to Fig. 9-that' the. shaft I94 is some-j what inclined,- the purpose being to cause. the clearer plate I98- to operate in a plane substantially parallel-to the'plane of the cutting'edge of" the knife 64 when the knife is inclined relativelyto the carrier 24 in the manner illustrated in Fig. 5, as it is at the time when the clearer plate acts to remove the waste material. Itwill be understood that under some conditions the waste material will be release'dand will fall into the receptacle as a result of theswinging of the waste-retaining plate I82 away from the knife 64, before the clearer plate receives its operative movement. v

The shaft I94 is rotated-to operate the clearer plate I98 by a fluid-operated piston 2I8 (Fig. 10) movable in a cylinder 220 which is a part of the bracket I90. The piston is provided. with rack teeth 222 in engagement with a pinion 224 fast on the shaft I94; and its movements inopposite directions are limited by a screw 226 which is threaded in the piston and arranged to engage the cylinder 220 at opposite ends of a slot 228. therein. A torsion spring 230 (Fig. 9) serves. to turn, the shaft [94in the direction to impart return movement. to the clearer plate and the piston. The piston is operated byfluid admitted to the-cylinder 220from a pipe 232' (Fig. 1')

1 automatically 1 by valve inotfshownli The cement-applyingdevice 22," as h '5 For this purpose the carrier" and i"48on" t he arner 'Ifhejtwo iippe 242 are connected together by a" web 250 the carrier 24. This spring tend tosw shownfis' 'soconstructed as to ad'aptjit for U I o apply thermoplastic 'cem'ent maintainedfby' healt in a iiquidfc'ondition {to 'thelinsole to fasten th'e :toe end o f the upper to the insole although j c'e ment ofa different kind ma'ybe l 10 port for a cals'ting 2 34 (F g 'therein'a cement-containing c tacle, "is supported directly by'mearisf er ods 23B and flfl' on the front ends-of upper and we'r pairs ofparallel links! and Nett e IGQFBLIld'S' of which are mounted; respectively on? rod 256 thr'eadediri an ear 252" (Fig; 251 on this screwj 254i the lower-tend of fwhichfis c mpr si n s in fi vm nt d ma links and 244 dowhwardly, the limit downward: movement of thelinks and of th mg 234 being adjus t ably diet minedhy links 242 and i s 'face ZBZ "on t h never a ,t l m f th t sfiil sto p d y the rnanner hereinafter explained; he cem nt in he. hamber in dition thegca-s'ting 23A is heatedb inguists s p a n ur natin with each o her illm h nay hamber 21 be ses Sha ipv r i' l l of 1, the; block fa ra e .js t m rsi al n'lofih we end oftheinsolejas illustrate I, 28316 a d ,1.7, an extending through it? from, the ibqres 258 a he ha b r ma p sm ih qushwi i h cement isapplied to thefinso1e. The chamber 210 communicates through an upwardly extending bore 21% in theblock266 with a? chamberljllfi fin thecasting 234, and this chamber is arranged to communicatewiith another chamber 218 from which apassageZBU leadsfto the cementj contain 7 ing chamber 236. Leaemgjupwarmy nr m the chamber 218 is agbore 282 inthlcastingj 23m n which is mounted fa pump pilingerffz'iil. Normallyclosing the passage zilflilis aballvalye 286 held on its seat by spring 288 mounted bet tsleeanthe alv d he l'owen nd o th plun r. 2 land rio rfm allj closing communication between; the chamber ziefla a thechamber 21a a haHjaive 1 e h it e t'bra r 2. (Wee ies P u 4 i fl d i e f l i draw b n gn past the vaiveZBG. into jthechan b er 218,1and

when, it is moved downwardly it forces; cement past the valve 290 into the chamber Zliihnd T e er 8 ede' i w rdl tddeli er thecement in the manner described" as'a 1jes u 1t oi the downwardrnovementof the carriergflfto ter h v c m i ri de i -Q a "the shoe by the 'a'ction of *r'n'reans" not herein {fully inwardly over the insole. l The manner of operation of the so far asit is of interest with reference to the present invention, wiilnow be briefly summarized.

15After the shoe has been presented in the posiouter layerof theupp eron the wipers l B to assist in controlling it in the lasting operatiomin which operation the block 266 is wedged upwardlyby the actionofthe wipers and the upper thereon against theresistance ofthe spring 256 to permit 'thewipers to wipe the margin oi the outer later machine, in

tion determinedby the member 2 and the pins 14 "and after the 'startin'gof the power operation of th'e machine the toe rest 6, the instep support 8 and the heel rest It are moved into ti1esl1oe-supporting positions in which they are shown in Fig.

11. Shortly'after the beginning of the cycle' of operations "also the grippers l2 and 14 are operated to pull the upper in outward directions, and

while these grippers are holding the upper under tension the toe formerflt arid the wipers l8 are moved upwardly "to cause the toe fornier to wipe the upper heightwise ofthe last, the parts 'then f *occupying-the positions "in whichfthey are shown In the meantime the carrier 24 hasin Fig. 11. been moved downwardly to carry the upper-trimming m-eansinto operative position in response to the admission of fiui'dt o the cylinder 28. 1m

mediately-after the'wiping of the upper heightwise of the last fluid is admitted to the cylinder I96 to operate the three armed lever H2 and thereby to impart rearward movement to' the "slide As this 'slid'e beginsits"rearwardinove mnt itsicailri fal'ce'sfi t hcthn' the rolls 98 to im part outward-swinging {movements to the *side "trimming "knives 66; Immediately after ithese knivesbegin to act on the upper (Fig."13) the several grippers are opened to release the upper and'are moved out 'of the paths of the. knives. -It W i11be understood that the knives; moving in a plane parallel to 'the wipers fl 8; cnt through all 'bu't th'e outet layer of the outsprea'd upper matetheh'sid t m) the" wipers.

knife 64 in the same-plane as the side knives. By

the time}; therefore, when the side knives" have cor'hpl'eted their' operative movements the middle i knifeis'in positiontO act on t he izpper in respons'e to 1 furthe'r rearward" bodily movement of the arm-132mm middle" knife being mainftained'ifi-the proper plane by engagement/of the roll I50 with the top face of the plate I52." "In this manner the =rnidd1e' knife completes the upper-trimming opera'tionas illustrated in Figs. 1'4 and 15Qth waste materialrenioved from the upper heing' received in the space between the thence through t he passagezjt nd theghole s Jm iddl knifeahd the wasteetaininep te 212 t deliver it o t e t efi t in ole 7 ;Ass s the t mining operation is completed nuts is elease'd' frorn the cylinder 28 t0 Dermitthe ement to bejmo'ved upwerdlyby the spring so, and at approx .relees i pimm th j 0 t r m h li "fifl to be rettirned bythe=spririg$ I26 and the arm t'ely time fluid is i ceptacle I86 and the cement-applying means 22 is over the shoe. Admission of fluid once more to thecylinder 313 then causes the carrier 24 .to move downwardly to carry the cement-applying means into engagement with the shoe, as illustrated in l6, and to apply cement to the shoe. In response to this downward movement of the carrier the waste-retaining plate H32 on the arm M2 is swung rearwardly away from the middle knife 54, by the action of the stationary plate 2M on the rod H2. The knife 64 is then in such relation to the clearer plate 198 that any waste upper material which may still remain between the knife and the plate H32 will be removed by a swinging movement of the clearer plate in the manner illustrated in Fig. 4. Such movement of the clearer plate results from the admission of fluid to the cylinder 228, which occurs as the wipers I8 are operated to wipe the margin of the outer layer of the upper inwardly over the insole. Thereafter, in the course of the cycle of operations the carrier 24 is moved upwardly and is swung back to its initial position in proper .movable outwardly from opposite the, bottomof a last to trim from thetoe end of-a ,multi-ply upper on the last the margin of one or more inner layers of the upper materials whileleaving a margin of the outer layerto be lasted over an insole on the last, said upper-trimming means being movable heightwise of the lastinto position for thusoperating on theupper; and holddown means movable heightwise of the. last, with said upper-trimming means into position to any gage the insole between the latterand the upper:- trimming means and thereby to hold the margin of the insole against the bottom of the last-in the upper-trimmingoperation, the upper-trimming means being movable relatively to said holddown means in the-upper-trimming operation.

time relation to return movements of other parts of the machine.

Claims on the combination of upper-trimming means and cement-applying means herein disclosed are presented in a divisional application Serial No. 473,936, filed on January 29, 1943.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a shoe machine, means for trimming the margin of an upper on a last, said upper-trimming means being movable relatively to the last into position for operating on the upper, a fluidoperated device for thus moving the upper-trimming means by fluid pressure, and another fluidoperated device movable with said upper-trimming means-for thereafter operating said trimming means to trim the upper.

2. In a shoe machine, means for trimming from the toe end of a multi-ply upper on a last the margin of one or more inner layers of the upper materials while leaving a margin of the outer layer to be lasted over an insole, a support for said upper-trimming means movable to carry said means toward the last heightwise thereof prior to its operation on the upper, a fluid-operated device for thus moving said support by fluid pressure, and another fluid-operated device carried by said support for operating the upper-trimming means.

3. In a shoe machine, upper-trimming means movable outwardly from opposite the bottom of a last to trim from the toe end of a multi-ply P upper on the last the margin of one or more inner layers of the upper materials while leaving a margin of the outer layer to be lasted over an insole on the last, and holddown means relatively to which the upper-trimming means is thus movable, said holddown means comprising a member curved similarly to the edge of the toe end of the insole and arranged to engage the margin of the insole substantially all around the toe between the latter and the upper-trimming means in a location adjacent to the portion of the upper to be trimmed to hold the margin of the insole against the bottom of the last in the upper-trimming operation. g r

4. In a shoe machine, upper-trimming means ming from the toe .end of a multi-plyupper on'a 5. In a shoe machine, mechanism for trim- .ming from the toe end ofa multi-ply upper on a last the margin of one or more inner layers of the upper materials while leaving a margin of the outer layer to be lasted over an insole, said mechanism comprising a plurality of trimming knives movable respectively in different .directions outwardly from positions opposite the bottom of the last to perform the trimming operation and each having a cutting edge arranged to cut the materials on aline generally parallel to the edge of the last bottom. 7

6. Ina shoe machine, mechanism for trimlast the margin of one or more inner layers of the upper materials While leaving a margin of the outer layer to be lasted over an insole, said cut the materials on a line generally parallel to the edge 'of the last bottom, and means for op.- erating said knives, said operating meansib'eing constructed to cause different knives to operate on the upper in sequence.

7. In a shoe machine, .mechanism for trimming from the toe end. of a multi-ply upper on a last the margin of one or moreinner layers of the upper materials while leaving a margin of the outer layer to be lasted over an insole, said mechanism comprising a middle knife and side knives movable outwardly from positions opposite the bottom of the last to perform the trimming operation, the middle knife being movable lengthwise of the last and the side knives widthwise of the last, a member movable lengthwise of the last thus to operate the middle knife,

and means for operating the side knives. also by that movement of said member.

8. In a shoe machine, mechanism for trimming from the toe end of a multi-ply upper on a last the margin of one or more inner layers of the upper materials while leaving a margin of the outer layer to be lasted over an insole,

said mechanism comprising a middle knife and side knives movable outwardly from positions opposite the bottom of the last to perform the trimming operation, the middle knife being movable lengthwise of the last and the side knives widthwise of the last, a member movable'lengthwise of the last thus to operate the middle knife, said member having cam faces thereon, and

means for operating the side knives by said cam' faces. 7

9. In a shoe machine, mechanism for trimming from the toe end of a multi-ply upp r on a ose-4,512

last the margin of one or more inner layers of the upper materials while leaving a margin of the outerlayer to be lasted'over an insole, said mechanism comprising a middle knife "and side knives movable outwardly from positions opposite the bottom of the last to perform the trimming operation, the' middleknife being movable lengthwise of the last and the side knives widthwise of the last, a member movable lengthwise of'theclastthus to operate the middle knife, levers connected to the side knives for operating them, and means for operating said levers by the movement of said member. 1 l

-10. In a shoe machine, mechanism for trimming from the toe end of a multi-ply upper on a last the marginof one or more inner layers of the outer layer to be lasted over aninsole, said mechanism comprising a middle knife and side knives movable'outwardly from positionszopposite the bottom of the last to trim the upper, the middle knife being movable lengthwise of the last and the side knives widthwise of the last, a member movable lengthwiseof the last thus to operate the middle knife,v and means for operating the side knives to perform their trimming operations on the upper by that movement of said member before the middle knife becomes effective to trim the upper. 1

11. In a shoe machine, mechanism for trimming from the toe endof a multi-ply upper on a last the margin of one or more inner layers of the upper materials while leaving a margin of the outer layer to be lasted over an insole, said mechanism comprising a middle knife and side knives movable outwardly from positions opposite the bottom of the last to, trim the upper, the middle knife being. movable lengthwise of the last and the last relatively tothe side knives and for also moving it lengthwise of the last to perform its trimming operation. 1 a i l V 14. In a shoe machine, mechanism for trimming from the toe end of a multi-ply upper on a last the margin of one or more inner layers of the upper materials while leaving a margin of the outer layer to be lasted over an insole, said mechanism comprising a middle knife and side knives movable outwardly from positions opposite the bottom of the last to trim the upper, an arm sup-1 upper materials while leaving a margin of the f the side knives widthwise, of the last, a member movable lengthwise of thelast thus tooperate the middlewknife, and levers connected to the sideiknives for operating them, said member being provided with cam faces for operating said levers to cause the'side knives to perform their trimming operations on the upper before the middle knife becomes effective to trim' the upper.

12. In a shoe machine, mechanism for-trimming from the toe end of a multi-ply upper on a last the;margin of one or more inner layers of the upper materials while leaving a margin of the outer layer to be lasted over an insole, said mechanism comprising a middle knife and side knives movable outwardly from .positionsopposite :the bottom of the last to trim the upper, themiddle knife being movable lengthwise of the last and the side knives widthwise of the last, and means automatically movable in time relation to the side knives for moving the middle knife also heightwise of the last relatively to the side knives into position to1 perform its trimming operation on the upper.

13. In a shoe machine, mechanism for trimming from the toe end of a multi-ply upper on a last the margin of one or more inner layers of the upper materials while leaving a margin of the outer layer to be lasted over an insole, said mechanism comprising a middle knife and side knives movable outwardly from positions] opposite the bottom of thelast to trim the'upper, means for moving the side knives widthwise of the last to make way for the middle knife and to perform theirtrimming operations before themiddle knife acts on the upper, and additional means automatically movable in time relation to the 'side knives for moving the middle knife heightwise of porting the middle knife and mounted for swin ing movement heightwise of the last, meansfor moving the side knivesin a plane to perform their trimming operations, and means for swinging said arm to carry the middle knife to the same plane and for thereafter movingthe arm rectilinearly to Cause the middle knife to perform its trimming operation. l 1 i I 15; In a shoe machine, mechanismfor trimming from the toe end of a multi -ply upper on a last the margin of one or more inner layers of the 1 upper materials while'leaving a margin of the outer layer to be lasted over an insole, said mechanism comprising a middle knife and side knives movable outwardly from positions opposite the bottom of the last to trim th uppenthe middle knife being movable lengthwise ofthe last and the side knives widthwise of the last, an operating membermovable lengthwise of the last, means for operating the side knives by the movement of said member, an arm supporting the middle knife and mountedon said member for swinging movement heightwise of the last, and means for SWinging said arm to carry the middle knife toward the last infthe course of the movement of said member before the middle knife begins its trimming operationbn the upper; l v

16. In a shoe machine, mechanism for trim? ming from the toe end of a multi-ply upperona wise of the last, and asecond lever arranged to be operated by said first-named lever to swing said arm to carry the middle knife toward the last before it begins its trimming operation on the upper. v

.;17.:-,In a shoe machine, mechanism for trimming from the toe end ofa multi-ply upper on a last the margin of one or more inner layers of the upper materials while leaving a margin of the outer layer to be lasted over an insole, said mechanism comprising a middle knife and side knives'movable outwardly from positions oppositethe bottom of the last to trim the upper, the middle knife being movable lengthwise. of the last and the side knives widthwise of the last, an

operating. member movable lengthwise of the last, a lever for operating said membergimeans for operating the sideknives by the movement of said member, an armsupporting themiddle k-nife andimounted on said member for swinging movement heightwise of the last, and a second lever arranged. to beoperated by said firstnamed lever to swing said arm to carry the mid dle knife toward the last in the course of the movement of said operating member, said second lever having means for engaging said arm to control the middle knife thereafter in its upper-trimming operation.

18. In ashoe machine, upper-trimming means arranged to sever surplus marginal material from an upper on a last by movement outwardly from opposite the bottom of the last, said upper-trimming means being movable away from the last after thus operating on the upper, and a waste-retaining device movable with the upper-trimming means to carry away from the last the waste material removed from the upper.

19. In a shoe machine, upper-trimming means comprising a trimming knife arranged to sever surplus marginal material from an upper on a last, said upper-trimming means being movable away from the last after thus operating on the upper, and a resilient waste-retaining member arranged to cooperate with said knife to hold the waste material removed from the upper and. .to carry it away'from the last with the uppertrimming means.

20. In a shoe machine, upper-trimming means arranged to sever surplus marginal material from an upper on a last by movement outwardly from opposite the bottom of the last, said upper-trimming means being movable away from the last after thus operating on the upper, a waste-retaining device movable with the uppertrimming means to carry away from the lastthe waste material removed from the upper, and means for operating said device to release the waste material after it has been carried away from the last.

21. In a shoe machine, upper-trimming means comprising a trimming knife arranged to sever surplus marginal material from an upper on a last, said upper-trimming means being movable away from the last after thus operating on the upper, a resilient waste-retaining member arranged to cooperate with said knife to hold the waste material removed from the upper and to carry it away from the last with the upper-trimming means, and means for bending said resilient member to release the waste material after it has been carried away from the last.

22. In a shoe machine, upper-trimming means arranged to sever surplus marginal material from an upper on a last, said upper-trimming means being movable to a different position after thus operating on the upper, a waste-retaining device movable with the upper-trimming means to carry the waste material removed from the upper, and means for operating said waste-retaining device to release the waste material in response to the movement of the upper-trimming means toward said different position.

23. In a shoe machine, upper-trimming means arranged to sever surplus marginal material from an upper on a last, said upper-trimming means being movable to a different position after thus operating on the upper, a waste-retaining device movable with the upper-trimming means to carry the waste material removed from the upper, mechanism also movable with the uppertrimming means for operating said device to release the waste material, and a member into engagement with which said mechanism is carried by the movement of the upper-trimming means toward said different position to cause it thus to operate said device. 7

24. In a shoe machine, upper-trimming means arranged to sever surplus: marginal material from an upper" on a last, said upper trimming means being movable to a different position after thus operating on the-upper while carrying waste material removed from the upper, and means for removing the waste material from the upper-trimming means after ithhas arrived in said different position.

- 25: Tn; afshoe machine, upper-trimming means arranged to sever surplus marginal material from an upper on a last, said upper-trimming means being movable to a difierent position after thus operating on the upper while carrying'waste material removed from the upper, and mechanism into operative relation to which the upper-trimming means is thus movablefor removing there from the waste material.

26. In a shoe machine, upper-trimming means comprising a trimming knife arranged to sever surplus marginal material from an upper on a last, said upper-trimming means being movable to a different position after thus operating on the upper while carrying waste material removed from the upper, a member movable relatively to said knife to remove the waste material when the upper-trimming means is in said different position, a fluid-operated device for operating said member, and a spring for imparting return movement to said member.

27. In a shoe machine, upper-trimming means arranged to sever surplus marginal material from an uppe on a last, said upper-trimming means being movable away from the last after thus operating on the upper, a waste-retaining device movable with the upper-trimming means to carry away from the last the waste material removed from the upper, and means for removing the waste material controlled by said device after it has been carried away from the last.

28. In a shoe machine, upper-trimming means arranged to sever surplus marginal material from 29. In a shoe machine, upper trimming means comprising a trimming knife arranged to sever surplus marginal material from an upper on a last, said upper-trimming means being movable away from the last after thus operating on the upper, a resilient waste-retaining member arranged to hold between it and said knife the waste material removed from the upper to carry the waste material away from the last, means for bending said resilient member away from the knife to release the waste material, and a wasteremoving member movable along the edge of the knife between it and said resilient member to remove the waste material when it is thus released,

30. In a shoe machine, upper-trimming means arranged to sever surplus marginal material from an upper on a last, said upper-trimming means being movable to a different position after thus operating on the upper, a waste-retaining device movable with the upper-trimming means to carry the waste material removed from the upper, means for operating said waste-retaining device to release the waste material in response to the movement of the upper-trimming means toward said different position, and mechanism 'toward which the upper-trimming means is thus opposite the bottom of the last, a waste-retaining device arranged to receive and retain the waste material removed from the upper, and means for operating said device after the upper-trimming operation to release the waste material.

32. In a shoe machine, upper-trimming means comprising a trimming knife arranged to sever surplus marginal material from an upper on a last, a waste-retaining device arranged to hold between it and said knife the waste material thus removed from the upper, and means for moving said device away from the knife after the uppertrimming operation to release the waste material.

33. In a shoe machine, upper-trimming means arranged to sever surplus marginal material from an upper on a last, a waste-retaining device arranged to receive and retain the waste material thus removed from the upper, means for operating said device after the upper-trimming operation to release the waste material, and means for removing the waste material when it is thus released. i

34, In a shoe machine, upper-trimming means comprising a trimming knife arranged to sever surplus marginal material from an upper on a last, a waste-retaining device arranged to hold between it and said .knife the waste material removed from the upper, means for moving said device away from the knife to release the waste material after the upper-trimming operation, and a member movable between said device and the knife to remove the waste material when it is thus released.

35. In a shoe machine, means for trimming from the toe end of a multi-ply upper on a last the margin of one or more inner layers ofthe upper materials while leaving a margin of the outer layer to be lasted over an insole, said uppertrimming means comprising side knives movable widthwise of the last and a middle knife movable lengthwise of the last to complete the trimming operation after the side knives have acted on the upper, and a waste-retaining device movable with the middle knife to receive and control the waste material removed" from the upper.

36. In a shoe machine, means for trimming from the toe end of a multi-ply upper on a last the margin of one or more inner layers of the upper materials while leavingv a margin of the outer layer to be lasted over an insole, said upper-trimming means comprising side knives movable widthwise of the last and a middle knife movable lengthwise of the last to complete the trimming operation after the side knives have acted on the upper, the middle knife being movable away from the last after the trimming op- 37. In a shoe machine, means for trimming from the toe end of a multi-ply upper on a last the margin of one or more inner layers of the upper materials while leaving a margin of the outer layer to be lasted over an insole, said uppertrimming means comprising side knives movable widthwise of the last and a middle knife movable lengthwise, of the last to complete the trimming operation after the side knives have acted on the upper, the middle knife being movable to a different position after the trimming operation, "a waste-retaining device movable with the middle knife to carry the waste material removed from the upper, and means for operating said wasteretaining device to release the waste material in response to the movement of the middle knife toward said different position.

38. In a shoe machine, means for trimming from the toe end of a multi-ply upper on alast the margin of one or more inner layers of the upper materials while leaving a margin of the outer layer to be lasted over an insole, said uppertrimming means comprising side knives movable widthwise of the last and a middle knife movable lengthwise of the last to complete the trimming operation after the side knives have acted on the upper, a support for said middle knife movable to carry the knife to a difierent position after the trimming operation, a waste-retaining device on said support arranged to cooperate with the middle knife to carry the Waste material removed from the upper, mechanism on said support for operating said device to release the waste material, and a member into engagement with which said mechanism is carried by said support tocause it thus to operate said device.

39. In a shoe machine, means for trimming from the toe end of a multi-ply upper on a last the margin of one or more inner layers of the upper materials while leaving a margin of the outer layer to be lasted over an insole, said uppertrimming means comprising side knives movable widthwise of the last and a middle knife movable lengthwise of the last to complete the trimming operation after the side knives have acted on the upper, the middle knife being movable to a different position after the trimming operation, a waste-retaining device movable with said knife 1 to carry the waste material removed from the eration, a waste-retaining device movable with the middle knife to carry away from the last the waste material removed from the upper, and means for operating said device to release the waste material after it has been carried away from the last.

trimming means comprising side knives movable widthwise of the last and a middle knife movable lengthwise of the last to completethe trimming operation after the side knives have acted on the upper, a waste-retaining device movable with said middle'knife for holding the waste material removed from the upper, and means for operating said device afterthe upper-trimming operation to release the waste material.

BERNI-IARDT J ORGENSEN. 

